rados.py: include setattr and rmattr
rados.py: include setattr and rmattr

Signed-off-by: Samuel Just <4c46b94684b338bae1ed5e7e1321718dd75401cc@dreamhost.com>

yghannam/teuthology,ktdreyer/teuthology,caibo2014/teuthology,ktdreyer/teuthology,michaelsevilla/teuthology,t-miyamae/teuthology,dmick/teuthology,robbat2/teuthology,SUSE/teuthology,dmick/teuthology,tchaikov/teuthology,zhouyuan/teuthology,yghannam/teuthology,caibo2014/teuthology,dmick/teuthology,t-miyamae/teuthology,SUSE/teuthology,SUSE/teuthology,michaelsevilla/teuthology,ceph/teuthology,zhouyuan/teuthology,tchaikov/teuthology,ivotron/teuthology,dreamhost/teuthology,robbat2/teuthology,ivotron/teuthology,dreamhost/teuthology,ceph/teuthology